TDMA,FDMA,CDMA,GSM,MPEG2... ANY WHITE PAPERS?
TDMA, CDMA, and FDMA are access techniques for efficient use of radio spectrum. Please look up:
Information about GSM can be found in the book "The GSM System for Mobile Communications--A Comprehensive Overview of the European Digital Cellular Systems" by Mouly and Pautet, as well as Ericsson and Nokia web sites.
Hope the above helps.